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80189441 = 611976673
BaseRepresentation
bin1001100011110…
…01100000000001
312120220001020022
410301321200001
5131012030231
611542423225
71662412313
oct461714001
9176801208
1080189441
11412a0572
1222a31b15
13137c8697
14a9157b3
15708ec7b
hex4c79801

80189441 has 8 divisors (see below), whose sum is σ = 81930024. Its totient is φ = 78462720.

The previous prime is 80189429. The next prime is 80189491. The reversal of 80189441 is 14498108.

It can be written as a sum of positive squares in 4 ways, for example, as 1050625 + 79138816 = 1025^2 + 8896^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80189441 - 214 = 80173057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80189401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8681 + ... + 15353.

It is an arithmetic number, because the mean of its divisors is an integer number (10241253).

Almost surely, 280189441 is an apocalyptic number.

It is an amenable number.

80189441 is a deficient number, since it is larger than the sum of its proper divisors (1740583).

80189441 is a wasteful number, since it uses less digits than its factorization.

80189441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 80189441 is about 8954.8557218975. The cubic root of 80189441 is about 431.2267851117.

The spelling of 80189441 in words is "eighty million, one hundred eighty-nine thousand, four hundred forty-one".

Divisors: 1 61 197 6673 12017 407053 1314581 80189441